Assembly type motor convenient for heat dissipation

Abstract

The utility model discloses an assembly type motor convenient for heat dissipation, which comprises a casing, a front end cover and a rear end cover, the front end cover and the rear end cover are detachably mounted at two ends of the casing respectively, a driving shaft is rotatably arranged in a manner of penetrating through the middle parts of the front end cover and the rear end cover, a rotor assembly is fixedly arranged on the outer circle wall of the driving shaft, and the rotor assembly is fixedly arranged on the outer circle wall of the driving shaft. A stator assembly is arranged at the position, outside the rotor assembly, of the machine shell, a plurality of stator iron cores are fixed to the outer circle wall of a driving shaft in a staggered mode through a fixing sleeve, then the driving shaft is installed and matched with a front end cover and a rear end cover, the front end cover and the rear end cover are installed at the two ends of the machine shell respectively, and meanwhile the driving shaft is rotationally arranged in the middle of the machine shell. The heat dissipation assembly is installed at one end of the driving shaft, then the motor is rapidly assembled, the internal structure of the motor is simplified through hot charging connection at multiple positions, heat dissipation and maintenance are easy, heat dissipation processing is further performed through the heat dissipation fins and the heat dissipation fan, and the overall heat dissipation effect of the motor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to an assembled motor which is convenient for heat dissipation. Background Art

[0002] A motor refers to an electromagnetic device that realizes the conversion or transmission of electrical energy based on the law of electromagnetic induction. Currently, existing motors generally only dissipate heat through heat dissipation fins. Also, due to their relatively complex internal structure, in harsh working environments such as high temperatures, the heat dissipation efficiency is low, which in turn leads to excessive heat inside the motor and affects the working efficiency of the motor. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an assembled motor which is convenient for heat dissipation, so as to solve the problems of complex internal structure and low heat dissipation efficiency of traditional motors mentioned in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: An assembled motor which is convenient for heat dissipation, including a motor housing, a front end cover, and a rear end cover. The front end cover and the rear end cover are respectively detachably installed at both ends of the motor housing. A drive shaft is rotatably arranged through the middle parts of the front end cover and the rear end cover. A rotor assembly is fixedly arranged on the outer circumferential wall of the drive shaft. A stator assembly is arranged outside the rotor assembly in the motor housing. A heat dissipation assembly is arranged at one end of the drive shaft located at the rear end cover.

[0005] Preferably, a wiring table is arranged on the top of the motor housing. A wire passing hole is arranged on one side of the wiring table. A plurality of convex platforms are annularly arranged on the outer circumferential wall of the motor housing. Threaded holes one are arranged on both sides of each convex platform. A plurality of heat dissipation fins are arranged between adjacent convex platforms. A positioning groove is opened on one side of the inner wall of the motor housing.

[0006] Preferably, a wiring terminal is arranged at the top of the wiring table corresponding to the wire passing hole. A cover plate is arranged on the top of the wiring terminal.

[0007] Preferably, the front end cover is provided with threaded holes two corresponding to the threaded holes one. The front end cover is annularly provided with a plurality of protrusions. Fixing holes are arranged through each protrusion. A round table is arranged on the inner side of the front end cover facing inwards. A bearing one is sleeved in the middle of the round table.

[0008] Preferably, the rear end cover is provided with threaded holes three corresponding to the threaded holes one. A stepped platform is arranged on the inner side of the rear end cover facing inwards. A bearing two is sleeved in the middle of the stepped platform. A wire guiding port is penetrated and opened on one side of the rear end cover.

[0009] Preferably, an encoder seat is arranged on the outer side of the stepped platform. An encoder is hot-fitted in the middle of the encoder seat. A protective cover is arranged on the rear end cover on one side of the encoder.

[0010] Preferably, the rotor assembly includes a plurality of rotor cores sleeved on the outer cylindrical wall of the drive shaft in a staggered manner. The drive shaft is symmetrically provided with key grooves, and the inner wall of the rotor core is provided with guiding keys corresponding to the key grooves. One side of the rotor core is provided with a plurality of mounting grooves penetrating and annularly arranged, and permanent magnets are arranged in the mounting grooves. Protective plates are arranged on both sides of the rotor core, and a fixing sleeve that fits with the protective plate is interference-fitted on the outer cylindrical wall of the drive shaft.

[0011] Preferably, the stator assembly includes a stator core. A plurality of tooth grooves are arranged on one side of the stator core close to the rotor core, a stator tooth pole is arranged on one side of the tooth groove, an air gap is arranged between the stator core and the rotor core, and a positioning platform is arranged on the outer cylindrical wall of the stator core.

[0012] Preferably, the heat dissipation assembly includes a heat dissipation fan fixedly arranged on one side of the drive shaft where the rear end cover is located, and a heat dissipation cover is arranged on one side of the rear end cover where the heat dissipation fan is located.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. By guiding the positioning platform along the positioning groove, the stator core is then hot-fitted to an appropriate position on the inner wall of the machine shell. Then, the guiding keys of a plurality of rotor cores are inserted into the key grooves in the drive shaft, and a plurality of stator cores are fixedly arranged on the outer cylindrical wall of the drive shaft in a staggered manner through the fixing sleeve. Then, the drive shaft is respectively installed and fitted with the front end cover and the rear end cover, so that the front end cover and the rear end cover are respectively installed at both ends of the machine shell. At the same time, the drive shaft is rotatably arranged in the middle of the machine shell. Then, the heat dissipation fan is installed at one end of the drive shaft, and the heat dissipation cover is installed on one side of the rear end cover, thereby quickly realizing the assembly of the motor. By adopting hot-fitting connections in multiple places, the internal structure of the motor is simplified, which is easy for heat dissipation and maintenance. At the same time, through heat dissipation fins and heat dissipation fans for further heat dissipation treatment, the overall heat dissipation effect of the motor is improved.

[0015] 2. The heat transfer area of the machine shell is enlarged through a plurality of heat dissipation fins, thereby enhancing the heat transfer effect on the air side and improving the heat dissipation effect of the machine shell. Moreover, during the assembly production or disassembly and maintenance process of the motor, by heating the machine shell, it is convenient to quickly install the stator assembly into the machine shell along the positioning groove or disassemble it from the inside of the machine shell, improving the production rate of the motor or facilitating its disassembly and maintenance. Description of the Drawings

[0016] Figure 1 is a first perspective three-dimensional structure schematic diagram of an embodiment of the present utility model;

[0017] Figure 2 is a second perspective three-dimensional structure schematic diagram of an embodiment of the present utility model;

[0018] Figure 3 is a sectional three-dimensional structure schematic diagram of an embodiment of the present utility model;

[0019] Figure 4 This is a schematic three-dimensional structure diagram of the housing in the embodiment of the present utility model;

[0020] Figure 5 This is a schematic three-dimensional structure diagram of the front end cover in the embodiment of the present utility model;

[0021] Figure 6 This is a schematic three-dimensional structure diagram of the rear end cover in the embodiment of the present utility model;

[0022] Figure 7 This is a schematic three-dimensional structure diagram of the drive shaft in the embodiment of the present utility model;

[0023] Figure 8 This is a schematic three-dimensional structure diagram of the rotor core in the embodiment of the present utility model;

[0024] Figure 9 This is a schematic three-dimensional structure diagram of the stator core in the embodiment of the present utility model;

[0025] Figure 10 This is an enlarged schematic structure diagram at position A in the embodiment of the present utility model.

[0026] In the figure: 1. Housing; 101. Wiring platform; 102. Wire passing hole; 103. Boss; 104. First threaded hole; 105. Heat dissipation fin; 106. Positioning groove; 2. Front end cover; 21. Second threaded hole; 22. Protrusion; 23. Fixing hole; 24. Round platform; 25. First bearing; 3. Rear end cover; 31. Third threaded hole; 32. Step platform; 33. Second bearing; 34. Wire port; 4. Drive shaft; 5. Rotor assembly; 51. Rotor core; 52. Keyway; 53. Guide key; 54. Installation groove; 55. Permanent magnet; 56. Protection plate; 57. Fixed sleeve; 6. Stator assembly; 61. Stator core; 62. Tooth slot; 63. Stator tooth pole; 64. Air gap; 65. Positioning table; 7. Heat dissipation assembly; 71. Heat dissipation fan; 72. Heat dissipation cover; 8. Wiring terminal; 9. Cover plate; 10. Encoder seat; 11. Encoder; 12. Protection cover; 13. Hoisting ring hole. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figures 1 - 10, the present utility model provides an assembled motor facilitating heat dissipation, including a motor housing 1, a front end cover 2, and a rear end cover 3. The front end cover 2 and the rear end cover 3 are respectively detachably installed at both ends of the motor housing 1. A drive shaft 4 is rotatably arranged through the middle parts of the front end cover 2 and the rear end cover 3. A rotor assembly 5 is fixedly arranged on the outer circumferential wall of the drive shaft 4. A stator assembly 6 is arranged outside the rotor assembly 5 in the motor housing 1. A heat dissipation assembly 7 is arranged at one end of the drive shaft 4 located at the rear end cover 3. By guiding the positioning platform 65 of the stator core 61 along the positioning groove 106, the stator assembly 6 is then hot-fitted to an appropriate position on the inner wall of the motor housing 1. Then, a plurality of guiding keys 53 of the stator core 61 are inserted into the key grooves 52 of the drive shaft 4, and the stator assembly 6 is fixed to the outer circumferential wall of the drive shaft 4 through a fixing sleeve 57. Then, the drive shaft 4 is respectively installed and matched with the front end cover 2 and the rear end cover 3, and the heat dissipation assembly 7 is installed on one side of the rear end cover 3, thereby quickly realizing the assembly of the motor. By adopting hot-fitting connections in multiple places, the internal structure of the motor housing 1 is simplified, making the internal structure of the motor housing 1 simple and compact, facilitating heat dissipation and maintenance. At the same time, through the heat dissipation fins 105 and the heat dissipation fan 71 on the outer circumferential wall of the motor housing 1, further heat dissipation treatment is carried out to improve the overall heat dissipation effect of the motor.

[0029] As Figure 4 shown, specifically, a wiring platform 101 is arranged at the top of the motor housing 1. A wire passing hole 102 is arranged on one side of the wiring platform 101. A plurality of convex platforms 103 are annularly arranged on the outer circumferential wall of the motor housing 1. Threaded holes 104 are arranged on both sides of each convex platform 103. A plurality of heat dissipation fins 105 are arranged between adjacent convex platforms 103. A positioning groove 106 is formed on one side of the inner wall of the motor housing 1. By means of the plurality of heat dissipation fins 105, the heat transfer area of the motor housing 1 is enlarged, thereby enhancing the heat transfer effect on the air side and improving the heat dissipation effect of the motor housing 1. Moreover, during the assembly production or disassembly and maintenance process of the motor, by heating the motor housing 1, it is convenient to quickly install the stator assembly 6 into the motor housing 1 along the positioning groove 106 or disassemble it from the inside of the motor housing 1, improving the production rate of the motor or facilitating its disassembly and maintenance.

[0030] Specifically, lifting ring holes 13 are formed at the tops of the convex platforms 103 on both sides of the top of the motor housing 1, facilitating the connection of lifting rings to hoist and transport the motor.

[0031] Specifically, a wiring terminal 8 is arranged at the top of the wiring platform 101 located at the wire passing hole 102. A cover plate 9 is arranged at the top of the wiring terminal 8. By passing the wires inside the motor housing 1 through the wire passing hole 102 and connecting and installing them to one side of the wiring terminal 8, and then using the cover plate 9 to protect the internal connection part of the wiring terminal 8, and then electrically connecting the other side of the wiring terminal 8 to an external circuit, the control of the motor is realized through the external circuit, facilitating use.

[0032] As Figure 5As shown, specifically, the front end cover 2 is provided with a threaded hole 21 corresponding to the threaded hole 104, the front end cover 2 is provided with a plurality of protrusions 22 in a ring shape, and fixing holes 23 are provided through the protrusions 22, and the front end cover 2 is provided with a round table 24 on the inner side, and a bearing 25 is sleeved in the middle of the round table 24. The fixing hole 23 in the middle of the protrusion 22 on the side wall of the front end cover 2 is used to facilitate the installation of the motor to a suitable position, and the bolts are threadedly connected with the threaded hole 104 and the threaded hole 21, so as to realize the rapid installation or disassembly of the front end cover 2 at one end of the casing 1, and the two ends of the drive shaft 4 are fixed by the cooperation of the bearing 25 and the bearing 2 33.

[0033] like Figure 6 As shown, specifically, the rear end cover 3 is provided with a threaded hole three 31 corresponding to the threaded hole one 104, the rear end cover 3 is provided with a step platform 32 on the inner side, and a bearing two 33 is sleeved in the middle of the step platform 32, and a wire opening 34 is opened through one side of the rear end cover 3, which is threadedly connected with the threaded hole one 104 and the threaded hole three 31 by bolts, thereby realizing the rapid installation or removal of the rear end cover 3 at the other end of the casing 1.

[0034] like Figure 10 As shown, specifically, an encoder seat 10 is provided on the outward side of the step platform 32, an encoder 11 is hot-installed in the middle of the encoder seat 10, and a protective cover 12 is provided on the side of the encoder 11 at the rear end cover 3. The encoder 11 improves the control accuracy and stability of the motor, and also enables the measurement of parameters such as motor speed and angle, which is convenient for real-time detection of the state of the motor.

[0035] like Figure 8 As shown, specifically, the rotor assembly 5 includes a plurality of rotor cores 51 staggeredly sleeved on the outer circumferential wall of the drive shaft 4, the drive shaft 4 is symmetrically provided with key slots 52, the inner wall of the rotor core 51 is provided with a guide key 53 corresponding to the key slot 52, a plurality of mounting grooves 54 are provided in a ring-shaped manner on one side of the rotor core 51, a permanent magnet 55 is provided in the mounting groove 54, protective plates 56 are provided on both sides of the rotor core 51, and the outer circumferential wall of the drive shaft 4 is provided with a fixed plate 56 in contact with the protective plate 56. The fixed sleeve 57 is configured to reduce the commutation noise and torque pulsation of the motor by installing the permanent magnet 55 into the installation groove 54 of the rotor core 51, and inserting the wire keys of several rotor cores 51 into the key grooves 52 on both sides, and then staggeringly sleeve the rotor core 51 onto the outer wall of the drive shaft 4, thereby reducing the commutation noise and torque pulsation of the motor, and at the same time installing the protection plates 56 on both sides of the stacked rotor cores 51, thereby protecting the rotor core 51 and preventing the permanent magnets of the rotor cores 51 on both sides of the end from falling off from the installation groove 54, thereby improving stability.

[0036] Specifically, the guiding keys 53 in the middle of several of the rotor cores 51 are arranged in a staggered distribution, which facilitates the staggered distribution of the rotor cores 51 on the outer circumferential wall of the driving shaft 4.

[0037] As Figure 9 shown, specifically, the stator assembly 6 includes a stator core 61. On one side of the stator core 61 close to the rotor core 51, there are several tooth grooves 62. On one side of the tooth grooves 62, there is a stator tooth pole 63. An air gap 64 is provided between the stator core 61 and the rotor core 51. A positioning platform 65 is provided on the outer circumferential wall of the stator core 61. By winding a coil (not shown in the figure) into the tooth grooves 62 of the stator core 61 and guiding the positioning platform 65 along the positioning groove 106, the stator core 61 can be conveniently hot-fitted to an appropriate position inside the casing 1.

[0038] As Figure 10 shown, specifically, the heat dissipation assembly 7 includes a heat dissipation fan 71 provided on a hot-fitted fixing sleeve 57 on one side of the driving shaft 4 located at the rear end cover 3. On one side of the heat dissipation fan 71 of the rear end cover 3, there is a heat dissipation cover 72. When the motor is in use, the driving shaft 4 drives the heat dissipation fan 71 to rotate synchronously, thereby generating an air flow to take away the heat inside the casing 1 and guiding it to the outside through the heat dissipation holes in the middle of the heat dissipation cover 72, so as to reduce the temperature inside the casing 1, ensure the normal operation of the motor and extend its service life.

[0039] The working principle of the present utility model: When in use, by guiding the positioning platform 65 along the positioning groove 106, the stator core 61 is hot-fitted to an appropriate position on the inner wall of the casing 1. Then, the guiding keys 53 of several rotor cores 51 are inserted into the key grooves 52 in the driving shaft 4, and several stator cores 61 are fixedly arranged in a staggered manner on the outer circumferential wall of the driving shaft 4 through the fixing sleeve 57. Then, the driving shaft 4 is respectively installed and matched with the front end cover 2 and the rear end cover 3, so that the front end cover 2 and the rear end cover 3 are respectively installed at both ends of the casing 1. At the same time, the driving shaft 4 is rotatably arranged in the middle of the casing 1. Then, the heat dissipation fan 71 is installed at one end of the driving shaft 4, and the heat dissipation cover 72 is installed on one side of the rear end cover 3, thereby quickly realizing the assembly of the motor. By adopting hot-fitting connections in multiple places, the internal structure of the motor is simplified, which is easy for heat dissipation and maintenance. At the same time, through further heat dissipation treatment by the heat dissipation fins 105 and the heat dissipation fan, the overall heat dissipation effect of the motor is improved.

[0040] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, or improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An assembled motor facilitating heat dissipation, comprising a motor housing (1), a front end cover (2) and a rear end cover (3), characterized in that: The front end cover (2) and the rear end cover (3) are respectively detachably installed at both ends of the machine housing (1). A drive shaft (4) is rotatably arranged through the middle parts of the front end cover (2) and the rear end cover (3). A rotor assembly (5) is fixedly arranged on the outer circumferential wall of the drive shaft (4). A stator assembly (6) is arranged outside the rotor assembly (5) in the machine housing (1). A heat dissipation assembly (7) is arranged at one end of the drive shaft (4) located at the rear end cover (3).

2. The assembled motor facilitating heat dissipation according to claim 1, wherein: A wiring table (101) is arranged on the top of the machine housing (1). A wire passing hole (102) is arranged on one side of the wiring table (101). A plurality of bosses (103) are annularly arranged on the outer circumferential wall of the machine housing (1). Threaded holes one (104) are arranged on both sides of the boss (103). A plurality of heat dissipation fins (105) are arranged between adjacent bosses (103). A positioning groove (106) is opened on one side of the inner wall of the machine housing (1).

3. The assembled motor facilitating heat dissipation according to claim 2, characterized in that: A wiring terminal (8) is arranged on the top of the wiring table (101) located at the wire passing hole (102). A cover plate (9) is arranged on the top of the wiring terminal (8).

4. The assembled motor facilitating heat dissipation according to claim 2, characterized in that: Threaded holes two (21) corresponding to the threaded holes one (104) are arranged on the front end cover (2). A plurality of protrusions (22) are annularly arranged on the front end cover (2). Fixing holes (23) are arranged through the protrusions (22). A round table (24) is arranged on the inner side of the front end cover (2) facing inwards. A bearing one (25) is sleeved in the middle of the round table (24).

5. The assembled motor facilitating heat dissipation according to claim 2, wherein: Threaded holes three (31) corresponding to the threaded holes one (104) are arranged on the rear end cover (3). A stepped table (32) is arranged on the inner side of the rear end cover (3) facing inwards. A bearing two (33) is sleeved in the middle of the stepped table (32). A wire guiding port (34) is arranged through one side of the rear end cover (3).

6. The assembled motor facilitating heat dissipation according to claim 5, wherein: An encoder seat (10) is arranged on the outer side of the stepped table (32) facing outwards. An encoder (11) is hot-fitted in the middle of the encoder seat (10). A protective cover (12) is arranged on one side of the rear end cover (3) located at the encoder (11).

7. An assembled motor facilitating heat dissipation according to claim 1, characterized in that: The rotor assembly (5) includes a plurality of rotor cores (51) alternately sleeved on the outer circumferential wall of the drive shaft (4). Key grooves (52) are symmetrically opened on the drive shaft (4). Guide keys (53) corresponding to the key grooves (52) are arranged on the inner wall of the rotor core (51). A plurality of installation grooves (54) are annularly arranged through one side of the rotor core (51). Permanent magnets (55) are arranged in the installation grooves (54). Protective plates (56) are arranged on both sides of the rotor core (51). A fixing sleeve (57) that fits with the protective plate (56) is interference-fitted on the outer circumferential wall of the drive shaft (4).

8. The assembled motor facilitating heat dissipation according to claim 7, wherein: The stator assembly (6) includes a stator core (61). A plurality of tooth grooves (62) are arranged on one side of the stator core (61) close to the rotor core (51). Stator tooth poles (63) are arranged on one side of the tooth grooves (62). An air gap (64) is arranged between the stator core (61) and the rotor core (51). A positioning table (65) is arranged on the outer circumferential wall of the stator core (61).

9. The assembled motor facilitating heat dissipation according to claim 1, wherein: The heat dissipation component (7) includes a heat dissipation fan (71) fixedly provided on one side of the drive shaft (4) located on one side of the rear end cover (3), and a heat dissipation cover (72) is provided on one side of the rear end cover (3) and located on one side of the heat dissipation fan (71).

Images